One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,4)(3,9,10,7)(5,12,13,8)(11,14,16,15)(20,28)(24,29)(26,32)(30,31)(33,34)(35,42)(36,39)(37,40)(38,44)(41,46)(43,47)(45,48)(2,4)(7,9)(8,12)(14,15)(17,18)(19,25)(20,24)(21,22)(23,27)(26,31)(28,29)(30,32)(34,36)(35,37)(41,44)(43,45) involution — undirected(3,10)(7,9)(11,16)(14,15)(18,22)(23,25)(24,29)(30,31)(33,35,39,37)(34,40,36,42)(38,43,46,45)(41,47,44,48)(1,3,6,10)(2,7,4,9)(5,11,13,16)(8,14,12,15)(17,18)(19,23)(20,24)(21,22)(25,27)(26,30)(28,29)(31,32)(33,36,39,34)(35,40,37,42)(38,44,46,41)(43,47,45,48)(1,4,6,2)(3,9,10,7)(5,12,13,8)(11,15,16,14)(17,19,21,27)(18,23,22,25)(20,26,28,32)(24,30,29,31)(33,37,39,35)(34,40,36,42)(38,45,46,43)(41,47,44,48)(1,5,6,13)(2,8,4,12)(3,11,10,16)(7,14,9,15)(17,20)(18,24)(19,26)(21,28)(22,29)(23,30)(25,31)(27,32)(33,38,39,46)(34,41,36,44)(35,43,37,45)(40,47,42,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.